Solutions Molarity Worksheet Name: - University of Texas at Austin

Solutions Molarity Worksheet

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Name: ________________

1. When we dissolve a cube of sugar in one cup of water, we create a ________________ mixture. Such mixture is called ________________. The sugar is the ________________ and water is the ________________.

2. The molarity of a solution is defined as the ________________ of solute per ________________. Molarity is abbreviated as _____. When the solvent is water, we have an ________________ solution.

3. A 3 M aqueous calcium nitrate solution contains ________________in ________________. We can write the molarity of this solution as a unit factor as follows: ________________.

4. One liter calcium nitrate solution contains _____ mole of calcium ions and _____ moles of nitrate ions.

5. The concentration of a solution can also be expressed in mass percent. A 5% aqueous sodium bromide solution contains ________________in ________________. We can write the mass percent of a solution as a unit factor as follows: ___________________

6. What is the number of moles of silver nitrate in a 125 mL solution that is 0.125 M?

7. How many grams of calcium acetate are present in 225 mL solution that is 1.20 M?

8. What mass of glucose, C6H12O6, is needed to prepare a 250. mL of solution that is 1.50 M glucose solution?

9. What volume of a 0.150 M NaOH solution contains 2.50 g of sodium hydroxide?

10. What is the molarity of potassium chlorate prepared my mixing 45.0 g of KClO3 to make 600. mL solution?

11. Given a 2.0 M ammonium sulfide, (NH4)2S: a. What is the molarity of ammonium ions? b. What is the molarity of the sulfide ions?

12. What is the molarity of the individual ions in a 225 mL solution that contains 12.5 g of aluminum sulfate?

13. If 117 g of a compound are dissolved in 500.0 mL of water to give 4.0 M solution, what is the molar mass of this compound? 1

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